Friedrich Schlemm
Who was Friedrich Schlemm?
German anatomist (1795–1858)
Biographical data adapted from Wikipedia’s article on Friedrich Schlemm (CC BY-SA 4.0).
Biography
Friedrich Schlemm was born on December 11, 1795, in Salzgitter, now part of Lower Saxony in Germany. His family didn't have the means to send him to university, so he became an apprentice to a barber-surgeon in Braunschweig. This hands-on experience allowed him to train at the Anatomico-Surgical Institute in Braunschweig, where he honed his skills in anatomy and surgery. During this time, he became very skilled in dissection, a talent that defined his professional career.
Schlemm's path to a career in academic medicine included some controversy. In June 1816, he and another student dug up a woman's body from a churchyard in Braunschweig at night, hoping to study the effects of rickets on her bones. They were caught and spent four weeks in prison. After this, Schlemm moved to Berlin and started working as a junior army surgeon. In Berlin, Professor Karl Asmund Rudolphi, the director of the Berlin Institute of Anatomy, noticed Schlemm's talent and became an important supporter.
With Rudolphi's help, Schlemm progressed steadily in academia. He earned his medical doctorate from the University of Berlin in 1821 and became Prosector in 1823, responsible for preparing cadavers for anatomy classes. In 1829, he became a professor extraordinary of anatomy, and by 1833, he was a full professor, a role he held for the last twenty-five years of his life. He mainly focused on teaching students and training surgeons in practical anatomical techniques.
Schlemm's scientific work involved detailed pathological examinations of cadavers. He is best known for two anatomical findings. First, he identified the corneal nerves of the eye, described in his 1830 treatise "Arteriarum capitis superficialum icon nova." Second, and more famously, he identified a circular channel in the eye now known as Schlemm's canal. This canal is crucial for draining aqueous humor from the anterior chamber of the eye and helps maintain intraocular pressure, especially important in understanding and treating glaucoma.
Schlemm died on May 27, 1858, in Berlin, after dedicating the last twenty-five years of his career to teaching anatomy at the University of Berlin. Although he didn't leave behind a substantial body of theoretical writing, his detailed observations and teaching had a lasting impact on anatomical science in Germany.
Before Fame
Friedrich Schlemm grew up with limited means in Salzgitter, so his family couldn’t afford the typical path into medicine. Instead, he apprenticed with a barber-surgeon in Braunschweig, a common alternative in early 19th-century Germany when academic medicine and surgery were just starting to become distinct professions. The Anatomico-Surgical Institute in Braunschweig provided him access to real anatomical material and hands-on surgical training.
In 1816, a grave robbing incident led to his brief imprisonment and forced him to leave Braunschweig. However, this event pushed him toward Berlin, which was becoming a major hub for medical research in Europe. Arriving as a low-level army surgeon, his impressive skill in dissection caught the attention of Professor Rudolphi at a time when the University of Berlin was expanding its science departments. This combination of luck and talent paved the way for his later success at the university.
Key Achievements
- First anatomist to identify and describe the corneal nerves of the eye, published in 1830
- Discovery of the circular drainage channel in the eye now universally known as Schlemm's canal
- Appointed full professor of anatomy at the University of Berlin in 1833
- Served as Prosector at the University of Berlin from 1823, training generations of surgeons through direct anatomical instruction
- Advanced from apprentice barber-surgeon to full university professor entirely through practical skill and institutional mentorship
Did You Know?
- 01.Schlemm and a fellow student were arrested in 1816 after digging up a woman's body from a Braunschweig churchyard at night in order to study the skeletal effects of rickets.
- 02.Because his family could not afford university fees, Schlemm began his medical education as an apprentice to a barber-surgeon, a trade that still combined haircutting and minor surgery in early nineteenth-century Germany.
- 03.Schlemm's canal, the eye structure named after him, is now a primary target in certain surgical procedures designed to reduce intraocular pressure in glaucoma patients.
- 04.His 1830 treatise, Arteriarum capitis superficialum icon nova, contained the first published description of the corneal nerves of the eye.
- 05.It took Schlemm twelve years to advance from Prosector, a preparatory and demonstrating role, to the rank of full professor at the University of Berlin.